Editing Polar Satellite Launch Vehicle (section)

== Variants ==
ISRO has envisaged a number of variants of PSLV to cater to different mission requirements. There are currently two operational versions of the PSLV — the core-alone (PSLV-CA) without strap-on motors, and the (PSLV-XL) version, with six extended length (XL) strap-on motors carrying 12 tonnes of HTPB based propellant each.<ref name=hi>{{cite news|url=http://www.thehindu.com/sci-tech/science/article2230282.ece|title=The PSLV is a proud symbol of ISRO's self-reliance|location=Chennai, India|work=The Hindu|first=T.S.|last=Subramanian|date=15 July 2011|access-date=16 July 2011|archive-date=26 October 2012|archive-url=https://web.archive.org/web/20121026015701/http://www.thehindu.com/sci-tech/science/article2230282.ece|url-status=live}}</ref> These configurations provide wide variations in payload capabilities up to {{cvt|3800|kg}} in LEO and {{cvt|1800|kg}} in sun-synchronous orbit.

=== PSLV-G ===
The standard or "Generic" version of the PSLV, '''PSLV-G''' had four stages using solid and liquid propulsion systems alternately and six strap-on motors (PSOM or S9) with 9 tonne propellant loading. It had capability to launch {{cvt|1678|kg}} to {{cvt|622|km}} into sun-synchronous orbit. [[PSLV-C35]] was the last operational launch of PSLV-G before its discontinuation.<ref>{{cite news|url=https://www.hindustantimes.com/india-news/pslv-c34-isro-s-biggest-launch-event-as-it-unfolded/story-60VI3nZjesqzhjWVUifj4H.html|title=Where India reaches for the stars: Inside ISRO's Sriharikota Centre|date=2016-06-22|publisher=Hindustan Times|access-date=2018-09-15|quote=Today, the PSLV is available in three configurations — the generic vehicle with six strap-ons, which is the earlier edition of PSLV (which will be discontinued soon)|archive-date=15 September 2018|archive-url=https://web.archive.org/web/20180915230041/https://www.hindustantimes.com/india-news/pslv-c34-isro-s-biggest-launch-event-as-it-unfolded/story-60VI3nZjesqzhjWVUifj4H.html|url-status=live}}</ref><ref>{{cite web|url=https://www.isro.gov.in/sites/default/files/article-files/node/7064/outcomebudget2016-2017.pdf|url-status=dead|title=Outcome Budget 2016–2017|publisher=Government of India, Department of Space|date=2016|access-date=15 September 2018|quote=Currently, two versions of PSLV are operational, namely PSLV-XL (with six extended version of Strap-on motors) and the PSLV Core-alone (without Strap-on motors).|archive-date=25 June 2017|archive-url=https://web.archive.org/web/20170625163259/http://isro.gov.in/sites/default/files/article-files/node/7064/outcomebudget2016-2017.pdf}}</ref><ref name=":0">{{cite book|title=From Fishing Hamlet to Red Planet: India's Space Journey|publisher=Harpercollins|year=2015|isbn=978-9351776895|chapter=2.6 PSLV: The workhorse of ISRO by N. Narayanamoorthy}}</ref>

=== PSLV-CA ===
The '''PSLV-CA''', CA meaning "Core Alone", model premiered on 23 April 2007. The CA model does not include the six strap-on boosters used by the PSLV standard variant but two SITVC tanks with Roll Control Thruster modules are still attached to the side of the first stage with addition of two cylindrical aerodynamic stabilizers.<ref name="sport">{{cite web |url=http://www.spacelaunchreport.com/pslv.html |title=PSLV Datasheet |access-date=27 September 2009 |archive-date=28 July 2020 |archive-url=https://web.archive.org/web/20200728073632/http://www.spacelaunchreport.com/pslv.html |url-status=usurped }}</ref><ref name=":0"/> The fourth stage of the CA variant has {{cvt|400|kg}} less propellant when compared to its standard version.<ref name="sport"/> It currently has capability to launch {{cvt|1100|kg}} to {{cvt|622|km}} [[Sun-synchronous orbit]].<ref name="versions">{{cite web|url=http://www.earth2orbit.com/pdf/PSLV.PDF|title=India's PSLV|date=15 March 2009|website=www.earth2orbit.com |archive-url=https://web.archive.org/web/20110710163553/http://www.earth2orbit.com/pdf/PSLV.PDF|archive-date=10 July 2011|url-status=dead}}</ref>

=== PSLV-XL ===
'''PSLV-XL''' is the upgraded version of Polar Satellite Launch Vehicle in its standard configuration boosted by more powerful, stretched strap-on boosters with 12 tonne propellant load.<ref name="sport"/> Weighing {{cvt|320|MT}} at lift-off, the vehicle uses larger strap-on motors (PSOM-XL or S12) to achieve higher payload capability.<ref name="Chandrayaan_1_Launch">[http://isro.org/pressrelease/Oct22_2008.htm PSLV-C11 Successfully Launches Chandrayaan-1] {{webarchive|url=https://web.archive.org/web/20081025031443/http://www.isro.org/pressrelease/Oct22_2008.htm|date=25 October 2008}}</ref> On 29 December 2005, ISRO successfully tested the improved version of strap-on booster for the PSLV.<ref>{{cite web|url=http://www.isro.org/newsletters/spaceindia/oct2005mar2006/Newsolid.htm|title=New Solid Propellant Motor to Increase PSLV Capability|publisher=ISRO|archive-url=https://web.archive.org/web/20090217222352/http://isro.org/newsletters/spaceindia/oct2005mar2006/Newsolid.htm|archive-date=17 February 2009|url-status=live|access-date=27 April 2007}}</ref> The first use of PSLV-XL was the launch of [[Chandrayaan-1]] by PSLV-C11. The payload capability for this variant is {{cvt|1800|kg}} to Sun-synchronous orbit.<ref name="versions"/>

=== PSLV-DL ===
'''PSLV-DL''' variant has only two strap-on boosters with 12 tonne propellant load on them. [[PSLV-C44]] on 24 January 2019 was the first flight to use PSLV-DL variant of Polar Satellite Launch Vehicle.<ref name="PSLV_DL">{{cite news|last1=Rajwi|first1=Tiki|title=SLV-C44 to lift-off with added features|url=https://www.thehindu.com/sci-tech/science/pslv-c44-to-lift-off-with-added-features/article25972663.ece|access-date=11 January 2019|archive-date=11 January 2019|archive-url=https://web.archive.org/web/20190111210842/https://www.thehindu.com/sci-tech/science/pslv-c44-to-lift-off-with-added-features/article25972663.ece|url-status=live}}</ref><ref>{{cite news|url=https://www.thehindu.com/news/national/kerala/pslv-lift-off-with-added-features/article25981654.ece|title=PSLV lift-off with added features|last=Rajwi|first=Tiki|date=2019-01-12|newspaper=The Hindu|access-date=2019-01-12|issn=0971-751X|archive-date=6 August 2020|archive-url=https://web.archive.org/web/20200806161530/https://www.thehindu.com/news/national/kerala/pslv-lift-off-with-added-features/article25981654.ece|url-status=live}}</ref> It is capable of launching {{Cvt|1257|kg|lb}} to {{Cvt|600|km|mi}} Sun-synchronous orbit.<ref name="VSSC_PSLV"/>

=== PSLV-QL ===
[[File:PSLV C45 EMISAT campaign 22.jpg|thumb|290px|[[PSLV-C45]] lift off]]

'''PSLV-QL''' variant has four ground-lit strap-on boosters, each with 12 tonnes of propellant. [[PSLV-C45]] on 1 April 2019 was the first flight of PSLV-QL.<ref name="c45_kit">{{cite web|url=https://www.isro.gov.in/pslv-c45-emisat-mission/launch-kit|title=Launch Kit C45|publisher=ISRO|access-date=23 March 2019|archive-date=24 March 2019|archive-url=https://web.archive.org/web/20190324134458/https://www.isro.gov.in/pslv-c45-emisat-mission/launch-kit|url-status=live}}</ref> It has the capacity to launch {{Cvt|1523|kg|lb}} to {{Cvt|600|km|mi}} Sun-synchronous orbit.<ref name="VSSC_PSLV">{{cite web|title=The Polar Satellite Launch Vehicle (PSLV)|url=https://www.vssc.gov.in/PSLV.html|archive-url=https://web.archive.org/web/20220126162242/https://www.vssc.gov.in/PSLV.html|archive-date=26 January 2022|access-date=27 January 2022}}</ref>

=== PSLV-3S (concept) ===
PSLV-3S was conceived as a three-staged version of PSLV with its six strap-on boosters and second liquid stage removed. The total lift-off mass of PSLV-3S was expected to be 175 tonnes with capacity to place 500&nbsp;kg in 550&nbsp;km [[low Earth orbit]].<ref name="versions"/><ref>{{cite web|url=http://www.ias.ac.in/currsci/dec252007/1697.pdf|title=Evolution of Indian launch vehicle technologies|date=25 December 2007 |website=www.ias.ac.in|publisher=Indian Academy of Sciences|archive-url=https://web.archive.org/web/20110524225122/http://www.ias.ac.in/currsci/dec252007/1697.pdf|archive-date=24 May 2011|url-status=dead}}</ref><ref>{{cite web|url=http://spl.gov.in/nsss2016/Program/web/SPS/SPS-1-2.pdf|title=Future of Space Transportation: S. Somanath|date=9 February 2016|archive-url=https://web.archive.org/web/20181024195940/http://spl.gov.in/nsss2016/Program/web/SPS/SPS-1-2.pdf|archive-date=24 October 2018|url-status=dead}}</ref><ref>{{cite web |url=https://www.mcgill.ca/iasl/files/iasl/Session_3_KRS_Murthi.pdf |archive-url=https://web.archive.org/web/20221010085517/https://www.mcgill.ca/iasl/files/iasl/Session_3_KRS_Murthi.pdf |archive-date=2022-10-10|url-status=live|title=Space Debris Mitigation – Coordination and Implementation efforts in India|last=Murthi|first=K.R. Sridhara|date=9 May 2009|access-date=22 November 2017}}</ref><ref name=":2">{{cite news|url=https://www.newindianexpress.com/states/kerala/2018/jan/02/isros-baby-rocket-to-carry-small-satellites-likely-to-take-off-in-2019-1742052.html|title=ISRO's baby rocket to carry small satellites, likely to take off in 2019|publisher=The New Indian Express|access-date=2018-01-02|archive-date=3 January 2018|archive-url=https://web.archive.org/web/20180103072531/http://www.newindianexpress.com/states/kerala/2018/jan/02/isros-baby-rocket-to-carry-small-satellites-likely-to-take-off-in-2019-1742052.html|url-status=live}}</ref>